Analysis

  • max time kernel
    1505s
  • max time network
    1471s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-02-2024 18:48

General

  • Target

    persisted_first_party_sets.json

  • Size

    2B

  • MD5

    99914b932bd37a50b983c5e7c90ae93b

  • SHA1

    bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

  • SHA256

    44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

  • SHA512

    27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 2 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 17 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
    1⤵
    • Modifies registry class
    PID:3556
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3772
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\persisted_first_party_sets.json
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2576
  • C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
    1⤵
      PID:4004
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k UnistackSvcGroup
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2740

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2740-0-0x000002943A540000-0x000002943A550000-memory.dmp

      Filesize

      64KB

    • memory/2740-16-0x000002943A640000-0x000002943A650000-memory.dmp

      Filesize

      64KB

    • memory/2740-32-0x00000294429B0000-0x00000294429B1000-memory.dmp

      Filesize

      4KB

    • memory/2740-34-0x00000294429E0000-0x00000294429E1000-memory.dmp

      Filesize

      4KB

    • memory/2740-35-0x00000294429E0000-0x00000294429E1000-memory.dmp

      Filesize

      4KB

    • memory/2740-36-0x0000029442AF0000-0x0000029442AF1000-memory.dmp

      Filesize

      4KB